body,
html {
  margin: 0;
  padding: 0;
  font-size: 16px;
  height: 100%;
}

nav {
  min-width: 600px;
}

nav .left {
  position: absolute;
  left: 0;
  z-index: 1;
  height: 60px;
  padding-left: 24px;
}

nav .left ul {
  padding: 0px;
  margin: 0;
  font-size: 0;
}

nav .left ul li {
  font: 13px/23px Arial, sans-serif;
  color: #222;
  list-style: none;
  display: inline-block;
  margin-right: 31px;
  position: relative;
  line-height: 60px;
}

nav .left ul li a {
  text-decoration: none;
}

nav .left ul li a:visited {
  color: #222;
}

nav .left ul li a:hover {
  color: rgb(47, 172, 255);
}

nav .left ul li a:hover + .more-button {
  display: block;
}

nav .left .more-button {
  position: absolute;
  right: 0;
  z-index: 1;
  top: 35px;
  width: 300px;
  padding: 15px 10px;
  border-radius: 15px;
  box-shadow: 0 2px 9px 0 #33333347;
  display: none;
}

.left .more-button .button-item {
  width: 50px;
  height: 60px;
  border: 1px solid #e0e0e0;
  border-radius: 5px;
  margin: 10px;
  display: inline-block;
}

.left .more-button-tomore {
  color: #a9a9a9;
  text-align: center;
}

nav .right {
  position: absolute;
  right: 0;
  font: 13px/23px Arial, sans-serif;
  color: #222;
  padding: 15px;
}

nav .right > div {
  margin: 0 16px;
  display: inline-block;
  vertical-align: middle;
}

.weather-icon {
  width: 23px;
  height: 23px;
  display: inline-block;
  background-size: 100% 100%;
  margin-right: 4px;
  vertical-align: bottom;
}

.show-airParm {
  color: #fff;
  padding: 0 6px;
  border-radius: 20px;
  font-size: 11px;
  background-color: #40c057;
  vertical-align: bottom;
}

.user .photo {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid #4e71f2;
  display: inline-block;
}

.user .photo img {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  padding: 2px;
  vertical-align: middle;
}

main {
  width: 622px;
  height: 40%;
  margin: 0 auto;
  position: relative;
}

.main {
  position: absolute;
  bottom: 0;
}

.main img {
  display: block;
  margin: 0 auto;
  margin-bottom: 30px;
}

.search-form span {
  vertical-align: middle;
  display: inline-block;
}

.search-form {
  font-size: 0;
}

.search-form .input-box {
  position: relative;
}

.search-form .input-box input {
  width: 446px;
  padding: 12px 46px 12px 12px;
  border: 2px solid #c4c7ce;
  border-right-width: 0;
  border-radius: 10px 0 0 10px;
  font-size: 16px;
  height: 16px;
}

.search-form .input-box::after {
  content: "";
  display: inline-block;
  background: #fff
    url(https://dss0.bdstatic.com/5aV1bjqh_Q23odCf/static/superman/img/searchbox/nicon-10750f3f7d.png)
    no-repeat;
  background-position: 0 -51px;
  width: 24px;
  height: 20px;

  position: absolute;
  right: 8px;
  top: 12px;
}

.search-form .input-box::after:hover {
  background-position: 0 -71px;
}

.search-form #search-input:focus {
  border-color: #4e6ef2;
  outline: 0;
}

.search-form .psubmit input {
  width: 108px;
  height: 44px;
  border: 0;
  font-size: 17px;
  color: #fff;
  border-radius: 0 10px 10px 0;
  background-color: #4e6ef2;
}

footer {
  width: 100%;
  text-align: center;
  font-size: 12px;
  position: fixed;
  bottom: 0;
  padding: 15px;
  min-width: 800px;
  overflow: hidden;
  font-family: "PingFang SC", Arial, "Microsoft YaHei", sans-serif;
}

footer span {
  color: #bbb;
  margin: 0px 10px;
}

footer span a {
  text-decoration: none;
}

footer span a:visited {
  color: #bbb;
}

footer span a:hover {
  color: #333;
}
